baber/WOPTO huggingface dataset:
Patent GB-917394-A (GB)
Title: Surface treatment of fluorinated polymers
IPC: C08J7/043
Filed: 1959-03-31
Abstract: <PICT:0917394/IV(a)/1> The surface of a fluorocarbon polymer, especially in the form of a film, tube, rod or filament, is activated by heating the surface to a temperature of at least 150 DEG C. but below that at which there is significant deterioration of the polymer and exposing the heated surface to the moist vapour of a volatile and readily hydrolysable compound of silicon, titanium or germanium. Specified fluorocarbon polymers include polytetrafluoroethylene, polychlorotrifluoroethylene and polyperfluoropropylene, and specified compounds include titanium tetrachloride, tetraisopropyl titanate, germanium tetrachloride and silicon tetrachloride. Polytetrafluoroethylene films may be treated with the vapour at 250 DEG -300 DEG C.  A porous, unfused film may be exposed to the vapour at a temperature below the sintering temperature of the film, the film thereafter being rendered nonporous by sintering, and then quenched.  Desirably, such a film is exposed to the vapour during heating of the film to sintering temperature and at the point at which the film becomes clear and semi-transparent, the exposure being terminated before the film begins to shrink.  The sintering temperature of polytetrafluoroethylene film is about 330 DEG -350 DEG C.  In apparatus as shown dry air is bubbled through titanium tetrachloride in a flask 10 and the resulting vapour is impinged against the surface of a polytetrafluoroethylene film 11 which is fed from supply roll 12, around heated roll 13 and on to storage roll 14. Nozzle 15 may be elongated, extending across the width of the film. Nozzle 15 and roll 13 may be contained within an oven or other chamber 16, provided with inlet and outlet ports.  The titanium tetrachloride reacts with atmospheric moisture or moisture on the film surface with the formation of titanium dioxide which is firmly bonded to the film surface.  The concentration of titanium tetrachloride may be controlled by dilution with carbon tetrachloride or other inert diluent or by the use of carrier gases other than air, and the titanium tetrachloride or solution thereof may be held at elevated temperatures.  Films so treated are free from slipperiness and have good adhesion to pressure-sensitive adhesive tapes and to epoxy resins and inks.
Patent GB-168097-A (GB)
Title: Treatment of copper nickel matte
IPC: C22B23/02
Filed: 1920-04-20
Abstract: Finely-divided copper-nickel matte or a mixture of copper and nickel sulphides, is heated with powdered caustic soda or with a mixture of caustic soda and sodium carbonate, common salt, sodium sulphate, sodium sulphide, or lime, and with or without the addition of a small proportion of powdered coal.  The operation may be performed in an open or closed vessel, or in a rarefied or inert atmosphere, or in hydrogen.  Sulphides, hydrosulphides, and thiosulphates of sodium are formed and metallic copper and nickel are precipitated.  Lime, with or without the addition of other salts, may be used instead of caustic soda, the temperature required being higher than in the case of caustic soda.  The mixture of metals may be treated with sulphuric acid for the formation of nickel sulphate.  Reference has been directed by the Comptroller to Specification 499/93.
Patent GB-803731-A (GB)
Title: Improvements in and relating to radial cylinder pumps and motors
IPC: F01B13/06
Filed: 1955-04-15
Abstract: 803,731. Radial cylinder pumps. CITROEN S.A., A. April 15, 1955 [April 17, 1954 ; March 28, 1955], No. 10979/55. Class 102(1). [Also in Group XXIX] Pistons 11 of a radial cylinder pump are actuated by rockers 9 pivoted on the cylinder block 1 at one end and engaging a cam track 13 at the other and engaging the pistons 11 at an intermediate point with an interposed ball 10 or push rod. The cylinders 2 are closed by a core 3 having ports 17, 18 communicating with the cylinder and conical faces 4, 5 engaged by distributing valves 15, 16 having ports 17<SP>1</SP>, 18<SP>1</SP> communicating with inlet and outlet passages 19, 20. The valves 15, 16 are held in contact with the faces 4, 5 by liquid pressure which passes through an orifice 100 into a chamber 21 having mutually slidable walls one of which is connected to the valve 16 and the other to the valve 15. The valve 16 is angularly adjustable by means of a pressure responsive piston to vary the timing of port opening. A feed pump 28 is driven from the drive shaft 32 through bevel gears.
Patent GB-591299-A (GB)
Title: Improvements in or relating to cut-off mechanism for cigarette-making machines
IPC: A24C5/28
Filed: 1945-05-01
Abstract: 591,299. Universal joints. RUAU, F. F., and MOLINS MACHINE CO.; Ltd. May 1, 1945, No. 10996. [Class 80 (ii)] [Also in Groups VI and XXV] A cigarette cut-off is formed with a Hooke's joint in which one of the rotatable shafts carries a fork 3 having pivot pins 4 and the end of the other shaft 1 has a cross-pin 2, the pins 2, 4 being journalled by rubber bushes in a knife carrier 5. Each rubber bush 8 has sleeves 6, 7 bonded thereto, the inner sleeve 7 being keyed to the pins, and the outer sleeve 6 to the knife carrier 5. In a modification, springs 9 are substituted for rubber bushings, one end of each spring being fixed to the pivot pins, and the other to the housings. Specification 324,379, [Class 130], is referred to.
Patent GB-1065953-A (GB)
Title: Semiconductor devices
IPC: H01L31/0384
Filed: 1964-03-16
Abstract: 1,065,953. Semi-conductor devices. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. March 16, 1964 [March 16, 1963; May 2, 1963 (2); June 17, 1963; Sept. 21, 1963 (2) ; Oct. 25, 1963; Oct. 28, 1963; Nov. 30, 1963; Dec. 4, 1963; Dec. 16, 1963; Dec. 23, 1963], No. 11023/64. Heading H1K. The invention makes use of the discovery that if a mixture of a semi-conductor material and an insulating material is brought into contact with an electrically charged electrode, the surface of the mixture, adjacent to the electrode, acquires a charge of the same polarity as that on the electrode. In the present invention a mass of such a mixture 16, which may be Cu 2 O in silicone resin, is placed on a body of semi-conductor 15, e.g. of N-type silicon. The ends of the body 15 are provided with ohmic contacts 19, 19 connected to terminals A, B and the rear surface of the mixture 16 carries a thin insulating film 17 on which there is a conducting layer 18 connected to a terminal C. If a voltage is connected across A and C, with C positive, a negative charge is induced in the lower surface of the insulating layer 17 and is communicated to the mixture layer 16, and if a voltage is also connected across A, B, the current through the device may be controlled in the manner of a field-effect transistor. It is also found, however, that, if an alternating voltage is impressed across terminals A and C, a direct current is obtained from terminals A, B. The magnitude of the output may be varied by the addition to the mixture of various substances such as fluorescent zinc sulphide or metals which have a photovoltaic effect in conjunction with the semi-conductor, such as copper. The semi-conductor material in the mixture may be Se, Cu 2 O, NiO, ZnO, PbO, CdS, Si, Ge, ZnSe and anthracene. The insulator may be glass, porcelain, sulphur, silicone resin, polyvinyl chloride, polyvinyl acetate, epoxy resin, polyvinyl butyral or wax. Suitable fluorescent materials are ZnS, (Zn, Cd) S, ZnSiO 4  and ferroelectric substances are BaTiO 3  and SrTiO 3 .
Patent GB-869666-A (GB)
Title: Improvements relating to resilient rail clips
IPC: E01B9/30
Filed: 1958-04-08
Abstract: 869,666. Fastening railway rails. TIPPETT, S. March 24, 1959 [April 8, 1958], No. 11063/58. Class 104 (2). In a rail clip formed from a single piece of strip metal bent to form two facing leaves 1, 2, the longer leaf 1 of which engages the top of the rail base 4 and the shorter leaf 2 abuts the side 4a of the rail base, the longer leaf 1 is curved locally to form a ridge 10 or depression 45 extending across the whole width thereof and. the ridge 10 or depression 45 is provided with one or more openings 11 aligned with one or more openings 12 in the shorter leaf 2 for the reception of a fixing bolt or bolts. In the arrangement shown in Fig. 10 the clip is held in position by a nut 35 engaging a saddle piece 20 bearing on the upper leaf 1. An intermediate member, Figs. 3 and 9 (not shown), may be inserted between the nut 35 and the leaf 1. The lower leaf 2 rests on a resilient pad 31 fitting in a recess 32 in the top of a concrete sleeper. The corners at the free end of the leaf 2 are raised at 16 to form abutments. The lower leaf 2 may be formed with a ridge which may be bent in the same or opposite direction to the ridge formed in the upper leaf 1, Figs. 5 and 7. The upper arm 1, during the passage of a train, bends about the edge 23 of a saddle piece 20 until the edge 4a of the rail base engages the leaf 1 when further upward movement is resisted by the saddle piece 20 the upward movement of which is resisted by a rubber insulating sleeve 34 mould-bonded to the fixing balls 15. In a modification shownin Fig. 12 a saddle piece 50, made of an electrically insulating material, such as hard rubber, nylon or ebonite, is integral with a sleeve 41 which enters the holes in leaves 1 and 2 of the clip and surrounds the bolt 15. The bolt 15 in this case has a " Tee "-shaped head 53 which engage beneath a plate 55 embedded in the sleeper 30. Specifications 865,119 and 865,120 are referred to.
Patent GB-351609-A (GB)
Title: Improvements in the production of mixed fertilisers
IPC: B01J2/30
Filed: 1930-04-08
Abstract: To minimize the caking tendency of a mechanical mixture of two or more coarsely crystalline water-soluble fertilizing salts it is treated with a spray of water or of an aqueous solution of one or more of the constituents and simultaneously agitated and heated. The aqueous solution may be one of all the soluble constituents of the mixture in the proportions in which they are present in the mixture. The treatment may be carried out in a drum with paddle stirrers, the spray of water or solution being injected into the body of the material and the vessel being heated externally or by passing a current of hot air through the material.  Treatment of a mixture containing potassium chloride, ammonium sulphate and a compound salt of ammonium sulphate and mono-ammonium phosphate is described by way of example.
Patent GB-855947-A (GB)
Title: Improvements in or relating to devices for feeding confectionery to wrapping machinesand the like
IPC: B65B35/08
Filed: 1958-04-09
Abstract: 855,947. Wrapping machines. SERAGNOLI, A., and SERAGNOLI, E., [trading as G.D. SOC. IN ACCOMANDITA SEMPLICE]. April 9, 1958 [April 11, 1957], No. 11158/58. Class 94(1). The feed wheel 22 of a machine for wrapping rectangular section toffees &c., 21 has pockets 23 of part circular and part rectilinear outline, the latter engaging the toffees during rotation to align them correctly. The wheel is domed and the toffees retained by a brush or other separating means 26 within the reservoir 25 pass over a portion 27 of the disc to its other side. The toffees may be ejected from the disc by a plunger 30 as shown, or by gravity or other suitable means.
Patent GB-129433-A (GB)
Title: Improvements in or relating to Coke-ovens or the like.
IPC: C10B5/06
Filed: 1918-07-09
Abstract: 129,433. Colquhoun, W., Marr, J., and Coke Oven Construction Co. July 9, 1918. Coke ovens. - In a regenerative oven having two series of horizontal heating-flues arranged side by side in each dividing-wall, two vertical air-supply and heating flues are arranged at one end to communicate with the top horizontal flues. As shown in connexion with reversible regenerators, the vertical flues, one of which is indicated by dotted lines at G<1>, supply heated air for the combustion of gas introduced into them at D, D, when the direction of the flow is as indicated by arrows; when the direction of flow is reversed, these flues act as waste-gas flues, gas being introduced into the heating-flues at the other end of the oven. In a modification in which a continuous regenerator is employed, the vertical flues G<1> serve as air and combustion flues only, and another single vertical flue at the other end supplie.s additional air to the lower horizontal heating-flues.
Patent GB-939572-A (GB)
Title: Improved organosiloxane compositions and elastomers prepared therefrom
IPC: C08K13/02
Filed: 1962-03-26
Abstract: A finely divided inert solid (i.e. of a particle size passing through a 200 mesh screen), e.g. silica, quartz, kaolin, calcium carbonate or diatomaceous earth, is coated with cupric acetate monohydrate, by spraying an ethanol solution of the acetate on to the solid while the solid is agitated, e.g. by continuous tumbling in a twin cone blender, the ethanol being subsequently removed by heating at 78 DEG to 150 DEG C.ALSO:A rubber-forming composition comprises (1) 100 parts (by weight) of a copolymeric dihydrocarbon polysiloxane gum having a hydrocarbon radical to Si atom ratio of from 1,95 to 2,05, wherein from 4,0 to 8,1 mol. per cent of the total number of radicals are ethyl radicals, from 0,0185 to 0,5 mol. per cent are olefinically unsaturated radicals, and the remainder are methyl radicals, and from 10 to 80 parts of either (2) a mixture of from 1 to 10 parts. of C black and from 10 parts. to 1 part. of Al2O3, or (3) finely divided SiO2 together with a stabilizing amount of one or more of ferric oxide, ferric octoate, ferric 2-ethylhexoate, cupric acetate, a mixture of cupric acetate and ferric octoate and a mixture of cupric acetate and ferric 2-ethylhexoate. The cupric acetate may be used in the form of a coating or a finely divided inert solid (see Group III). Colouring agents, e.g. ZnO, TiO2, Cr2O3 and C black, extenders, e.g. CaCO3 and Zr silicate, and plasticizers, e.g. alkoxy- and/or hydroxy-terminated siloxane oils, may also be added.  The above ingredients may be compounded in known manner with a curing catalyst, and heat cured, or if desired the above ingredients, without the catalyst, can be compounded and aged from 1 to 7 days at room temperature, or from 1 to 2 hours at a temperature above 120 DEG C., such treatment eliminating volatile matter, and then compounded with the curing catalyst and heat cured. In a typical example (1) a mixture of a siloxane gum composed of dimethyl-, ethylmethyl- and ethylvinyl-siloxane units, finely divided SiO2, Fe2O3, a liquid ethoxy-terminated dimethylsiloxane and di-tertiarybutyl peroxide, was compounded on a two roll rubber mill and subsequently mould cured at 170 DEG C. for 20 minutes and post cured at 250 DEG C.  Uses: As wire and cable insulations; vibration damping mounts, gaskets, seals and coatings.
Patent GB-1275205-A (GB)
Title: Intermittent feed mechanism with framing speed control
IPC: G03B19/18
Filed: 1970-03-10
Abstract: 1275205 Intermittent film feed mechanisms VANGUARD INSTRUMENT CORP 10 March 1970 [10 March 1969] 11447/70 Heading G2E An intermittent film feed mechanism for use in a projector comprises film advance claw 41 movable through a pull-down cycle by the axial reciprocation of rod 42 on which the claw is fixed, and by pivotal reciprocation about pin 57 of frame 43 in which rod 42 slides, the frame 43 being held against the upward film-engaging movement in each cycle by a latch 61a which is disengaged when electromagnet 65 is energized in response to a control signal generated each time supply sprocket 73 advances a frame length of film 60. Variable speed motor 71 drives the sprocket shaft 72 carrying a disc 92, the passage of magnet, 91 on the disc past need switch 93 providing the control signals. These signals pass, via pulse storage means, to a gate controlled by signals from photo-detector 84 separated from lamp 83 by apertured disc 81 on the constant-speed shaft 47 rotating cams 46, 51 actuating the film claw 41. Signals from the gate energize electromagnet 65 which is then de-energized to release the latch 61a by a signal from another photo-detector 87 as portions 88 of claw frame 43 uncovers lamp 86. This control system may be applied to a sprocket drive operated by a Gereva-drive in which an eccentric pin engaging a maltese-cross is retractable by a solenoid. Again, the system is applicable to a cam and claw feed mechanism in which the claw arm is held out of the operative position by a solenoid operated latch.
Patent GB-527779-A (GB)
Title: Improvements in or relating to calks
IPC: A43C15/16
Filed: 1939-04-15
Abstract: 527,779. Boot &c. calks. NITKEY, L. W. April 15, 1939, No. 11462. [Class 17 (iii)] A shoe calk, particularly for use with rubber-soled shoes such as are used by loggers, comprises a conical toothed or ribbed shank 4, a concavo-convex collar 6 formed with countersunk holes 9, or edge notches, for securing nails 10, and a spike portion 5. The toothed' &c. shank 4 is adapted to be forced into the rubber sole 2 without preparing the latter with holes to receive it.
Patent GB-115155-A (GB)
IPC: A43B3/16
Abstract: 115,155. Franks, A. July 25, 1917. Overshoes.-An overshoe, particularly for wear in munition factories, is made with the sole and upper in one piece closed by front and back seams b, c, a portion d at the toe being folded back and secured by a seam e, and is provided with an inner sole or sock h, which is secured by cement. The overshoe is also provided with a pulling-on piece j, and its upper edge is bound with leather, canvas, &c. g.
Patent GB-1205182-A (GB)
Title: Improved mobile irrigators
Inventor: SIMS DAVID LINDSAY
IPC: A01G25/09
Filed: 1969-03-04
Abstract: 1,205,182. Mobile irrigator. D. L. SIMS and A. M. SIMS. 4 March, 1969, No. 11526/69. Heading A1D. A mobile irrigator comprises a sprinkler pipe 13 supported above the ground by longitudinally spaced sets of legs, the legs 22 being secured to, and projecting outwardly from the pipe 13 so that the radially outer portion 23 of each leg is equally spaced from the radially outer portions of the neighbouring legs on either side of it, this spacing being equal to the distance between the rows of plants to be irrigated, the legs also having skids 24 permitting a longitudinal sliding movement of the pipe. In an embodiment three short radial members 20 are welded, 60 degrees apart, to each of two pipe clamp members 12b, the clamp members being bolted to the pipe 13 and each of six angled legs 22 being bolted to the ends of two adjacent radial members 20. Alternatively, the legs 22 are secured to a fixed pipe flange (30), Fig. 5 (not shown), by short members (31) which connect intermediate positions on the legs to the securing bolts of adjacent legs. In further embodiments, two braced sets of four tagential legs (40), Fig 6 (not shown), or six U-shaped members (10), Fig. 3 (not shown), with flattened bottoms (11) are secured to the pipe.
Patent GB-1500627-A (GB)
Title: Apparatus for use in determining respiratory path resistance
IPC: A61B5/085
Filed: 1975-03-19
Abstract: 1500627 Measuring respiratory path resistance SIEMENS AG 19 March 1975 [22 March 1974] 11528/75 Heading G1N(E) In an apparatus for determining the respiratory path resistance of a patient, the patient breathes into a mouthpiece 2 of a breathing tube 1 containing a laminae flow resistance 5 and a piston pump (providing sinusoidal pressure variations). Instead of the pump a source of pressure pulses Fig. 3 (not shown) is used to superimpose the alternating pressure variations on the respiratory flow. The result is monitored by a pressure sensitive transducer (e.g. a pressure sensitive transistor, or a Piezo microphone). The respiratory path resistance Raw can then be calculated by the computational circuit shown in Fig. 2, and according to the formula shown there. A converter 11 provides an electrical output signal proportional to the alternating component PM of the flow, which signal is fed to a multiplication device 14. There it is multiplied by a value representative of the basic resistance R o  and the signal is fed to a subtraction circuit 13. The circuit 13 subtracts the signal from a further signal derived from a multiplication device 12 which forms the product between the known sinusoidal amplitude V of the alternating flow pulsations and the basic resistance value R 0 . The outputs of devices 13 and 14 are fed to a dividing device 15 whose output (proportional to the respiratary path resistance) is fed to an indicating or register device 16. A modification utilizing a bi-stable circuit responsive to the "zero point" in the alternating pressure component and to a fixed point later on in the cycle, is described for calculating the phase shift between the flow pulsations V and the received pressure P M . A formula is disclosed for calculating the respiratory path resistance from the phase shift. A further embodiment, Figs.3 and 4 (not shown), is described utilizing the pressure pulses by means of sample and hold circuits. It is suggested that if a sinusoidal filter (at the base pulsation frequency) is used, the respirator path resistance can be determined in a manner similar to Fig.2.
Patent GB-591439-A (GB)
Title: A new or improved seat construction
IPC: B60N2/70
Filed: 1945-05-10
Abstract: 591,439. Securing upholstery to seats. BEADLE, Ltd., J. C., HICKS, H. G., and IRLAM, P. R. May 10, 1945, No. 11718. [Classes 52 (ii) and 52 (iv)] In a vehicle seat or the like the seat bottom 18 and seat back 26 comprise flexible foundations 19, 27 respectively of canvas or the like which are separately attached to two cross-bars 14, 15 respectively and the forward end of the seat bottom is stretched round cross-bars 25 and 16, while theseat back 26 is stretched round cross-bars 12 and 17, the two canvas sheets being connected together by one or more straining members 33. A trimming 36 is sewn or otherwise secured to the canvas bases 19, 27 to form pockets 37 into which pads 38 of latex or other cushioning material are inserted.
Patent GB-1342191-A (GB)
Title: Fluid pressure accumulator
IPC: F15B1/14
Filed: 1972-03-14
Abstract: 1342191 Accumulators NIPPON ACCUMULATOR K K 14 March 1972 [30 March 1971] 11729/72 Heading F1D A fluid-pressure accumulator has an outer shell 1 into which is threaded a closure cap 6 such that the flange portion 3 of a bladder 2 is clamped between the cap 6 and a projection 13 in the shell through the intermediary of a centering ring 5 having an anti-friction portion 4 which is engaged by the cap as it is threaded on to the shell 1. The portion 4 prevents contact of cap 6 with flange 3 which would otherwise exert shear stresses on the flange. The member 5 has a cylindrical portion 11 engaging the inside of the bladder mouth, the portion 4 being integral with the top of portion 11, and also an arcuate portion 12 leading from the bottom of portion 11. Further types of ring are also described Figs.3 to 5, (not shown).